Building Relationships, Building Trust, Building Together.
Welcome to Grassmere Construction, a leading Design-Build and Construction Management firm based in Tillsonburg, Ontario. Established over 30 years ago, we have been serving the industrial, commercial, and institutional building needs of clients across Southwestern Ontario. Our commitment to excellence, innovation, and customer satisfaction has earned us a reputation for delivering high-quality projects that exceed expectations.
Our Advantage
At Grassmere Construction, we pride ourselves on our extensive experience, knowledge, and expertise in delivering successful building projects. Our team of highly skilled professionals is dedicated to providing exceptional service, from the initial design phase to the final construction stage. We take pride in our ability to understand our clients' unique needs and goals and translate them into functional and aesthetically pleasing buildings that meet their requirements.
Our Services
As a full-service construction firm, we offer a wide range of services tailored to meet the diverse needs of our clients. Our services include:
- Design-Build: We assume sole responsibility for all facets of the project, while encouraging owner's involvement. Our Design-Build approach provides a single point of contact for clients, simplifying the construction process, reducing costs, and minimizing risks.
- Project Management: Our Project Management services involve hiring Grassmere to assist in acting as your own General Contractor. We work closely with clients, architects, engineers, and other stakeholders to ensure that projects are completed on time, within budget, and to the highest quality standards.
- Pre-Engineered Metal Building Systems: Benefit from our years of experience in constructing Pre-engineered Metal Building Systems. Our expertise in Butler Manufacturing, a worldwide leader in Pre-Engineered Metal Building Systems, allows us to deliver durable, versatile, and cost-effective solutions for a wide range of applications.
- Metal Roofing & Retrofitting: Our Metal over Metal Roof System is installed over your existing roof, allowing your business to operate uninterrupted. We offer a variety of metal roofing options that are energy-efficient, low-maintenance, and long-lasting.
- Special Projects: Our in-house expertise and experience enable us to handle a wide range of specialty construction projects. We have a proven track record of delivering innovative and practical solutions for unique building requirements.
Our Process
Our Three-Phase Design and Construction process involves:
1. Site Investigation and Preliminary Design: We conduct a thorough site investigation and develop preliminary designs based on the client's requirements.
2. Final Drawings and Construction Estimate: We develop detailed final drawings and prepare a comprehensive construction estimate based on the client's approved design.
3. Construction: We manage the construction phase, ensuring that the project is completed on time, within budget, and to the highest quality standards.
At Grassmere Construction, we are dedicated to building relationships that last. Our focus on collaboration, innovation, and excellence has earned us the trust and loyalty of our clients. We invite you to explore our projects and services and discover how we can help bring your vision to life.

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